So far I have said nothing of the Lar familiaris who has become a household word as a household deity; and yet we are on the point of leaving the house of the old Latin settler to look for the spirits whom he worships on his land. The reason is simply that after repeated examination of the evidence available, I find myself forced to believe that at the period of which I am speaking the Lar was not one of the divine inhabitants of the house. When Fustel de Coulanges wrote his brilliant book _La Cite antique_, which popularised the importance of the worship of ancestors as a factor in Aryan civilisation, he found in the Lar, who in historical times was a familiar figure in the house, the reputed founder of the family; and until lately this view has been undisputed. But if my account of the relation of the family to the gens is correct, the family would stand in no need of a reputed founder; that symbol of the bond of kinship was to be found in the gens of which the family was an offshoot, a cutting, as it were, planted on the land. Still more convincing is the fact that when we first meet with the Lar as an object of worship he is not in the house but on the land. The oldest Lar of whom we know anything was one of a characteristic Roman group of which the individuals lived in the _compita_, _i.e._ the spots where the land belonging to various households met, and where there were chapels with as many faces as there were properties, each face containing an altar to a Lar,--the presiding spirit of that allotment, or rather perhaps of the whole of the land of the familia, including that on which the house stood.[159] Thus the Lar fills a place in the private worship which would otherwise be vacant, that of the holding and its productive power. In this sense, too, we find the Lares in the hymn of the Arval Brethren, one of the oldest fragments of Latin we possess; for the spirits of the land would naturally be invoked in the lustration of the _ager Romanus_ by this ancient religious gild.[160]